Lock
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The kSafe is a smart safe designed to lock items away until the user has earned them through either hitting an activity goal, spending time at a specific location such as a library, or simply waiting until a pre-determined time for the lid to unlock.

The first time we heard about a padlock that can be unlocked by Bluetooth instead of a key or combination, it was the Noke by FŪZ Designs. While it won't be shipping until this June, however, the similar Quicklock will begin doing so next week. We recently had the chance to try out a sample unit.

U-locks are heavy, and cable locks can be cut easily. That's why Prof. Neil Barron, a former aeronautical engineer, has created the Litelok. It's light and flexible like a cable lock, but reportedly stands up to over five minutes of attack from tools such as bolt cutters, jacks and hack saws.

Last September we first heard about the one-off Yerka Project bike. Its clever feature was a frame that partially came apart to act as a lock. Now, its creators are attempting to bring it to market via an Indiegogo campaign.

Wheel theft is always a risk when leaving a nice bike parked in an urban environment. Cyclists can do things like removing the front wheel and locking it to the frame and rear wheel. Kryptonite's new Security WheelNutz, however, offer a quicker alternative ... with an interesting twist.

If you're looking to smarten up your locks to make your home more secure, you're not exactly short of options. But the makers of Sesame say smart locks could be a little more intuitive, and have developed a solution that, among other things, recognizes secret knocks to open up your door.

Locks are a necessity for keeping your bike secure between rides, but they can be a pain to carry around. U-locks are an awkward shape, wire locks can get tangled and thick chains can be very heavy. The Mighty Click is designed to provide both security and ease of portability.

Carrying a bike lock while cycling can be a hassle, which is why some companies have started developing built-in locks. One of the latest, the Frameblock, is actually part of the frame. That way, if a thief cuts through it, they're left with a damaged bike that they won't want.

Over the past couple of years, we've heard about two different bicycle U-locks – the Skylock and the BitLock – that can be unlocked via the user's smartphone. When it comes to a product that's actually being shipped now, however, the imaginatively-named Ulock has just beaten them both to it.